#The bottom casing serves as a seal to the overall casing of the coffee maker. The design of the casing provides ventillation for the heating element.

+

#The metal cover keeps the heating element and hot plate in place by securing both sides of the metal cover down with screws.

+

#The heating element has a dual purpose and is made of two parts. It boils the water to make the coffee and keeps the finished coffee warm while sitting. One part is the tube for the water to pass through. The other part is the resistive heating element that is powered through electricity.

+

#The orange tubes have a dual purpose. One tube brings the cool water from the resorvoir into the heating element while the other tube brings the hot water from the heating element into the black tube inside the resorvoir.

Latest revision as of 13:05, 16 August 2006

Contents

Description

This product is manufactured by Mr. Coffee and is one of many programmable coffee maker's that can brew up to twelve cups of coffee. Its programming capabilities allow for pause and serve options as well as setting the timer up to 24 hours in advance before brewing.

How It Works

When cold water is poured into the bucket, it flows from the bucket through the hole in the bottom of the bucket and into the orange tube. The cool water then flows through the one-way valve into the aluminum tube in the heating element, and then partially up through the black tube. This all happens naturally because of gravity.

When the switch is turned on, the heating element starts heating the aluminum tube, and eventually the water in the tube boils.

When the water boils, the bubbles rise up in the black tube and carries the water up the tube. The water flows out the end of the black tube to drip into the filter basket. The hot water and coffee grounds inside the filter basket brew and filter out through the bottom of the basket into the decantur to make fresh ground coffee.

Parts

Bottom Casing

Metal Cover

Heating Element

Orange Tube

Non-Stick Warming Plate

Control Panel

Hot Plate Holder

Circuit Board

Transformer

Black Tube

Water Sprout

Removable Filter Basket

Filter

Filter Spring

Water Resorvoir

Casing

Screw

Decantur

Ergonomically Designed Handle

The table belows lists the Bill of Materials for the coffee maker:

Table 4.1: Mr. Coffee TFX20 Bill of Materials

Part #

Part Name

# Req'd

Mat'l

Manufacturing Process

Image

1

Bottom Casing

1

ABS Plastic

Injection Molding

2

Metal Cover

1

Metal

Stamping/Forming

3

Heating Element

1

Aluminum

Extrusion/Forming

Need to upload

4

Orange Tube

2

Rubber

Molding

Need to upload

5

Hot Plate

1

Ceramic

Forming

6

Control Panel

1

ABS Plastic

Injection Molding

7

Hot Plate Holder

1

ABS Plastic

Injection Molding

8

Circuit Board

1

ABS Plastic, Fiber Glass, Lead, Steel, Copper

Forming

Need to upload

9

Transformer

1

ABS Plastic, Steel, Iron, Copper

Forming, Stamping, and Injection Molding

Need to upload

10

Black Tube

1

ABS Plastic

Injection Molding

Need to upload

11

Water Sprout

1

ABS Plastic

Injection Molding

12

Filter Basket

1

ABS Plastic

Injection Molding

13

Filter

1

ABS Plastic

Injection Molding

14

Filter Spring

1

Steel

Forming

15

Water Resorvoir

1

ABS Plastic

Injection Molding

16

Casing

1

ABS Plastic

Injection Molding

17

Screws

18

Steel

Machining

Need to upload

Disassembly/Purpose

The bottom casing serves as a seal to the overall casing of the coffee maker. The design of the casing provides ventillation for the heating element.

The metal cover keeps the heating element and hot plate in place by securing both sides of the metal cover down with screws.

The heating element has a dual purpose and is made of two parts. It boils the water to make the coffee and keeps the finished coffee warm while sitting. One part is the tube for the water to pass through. The other part is the resistive heating element that is powered through electricity.

The orange tubes have a dual purpose. One tube brings the cool water from the resorvoir into the heating element while the other tube brings the hot water from the heating element into the black tube inside the resorvoir.